Arthur Holst is Legislative and Regulatory Affairs Manager for the Philadelphia Water Department. He previously served as a Chief of Staff at Philadelphia City Council. He earned his Ph.D. in Political Science at Temple University where he also earned a Master in Public Administration and Bachelor in Business Administration. Arthur has contributed to a number of reference works on various subjects related to political science, history and the environment. Arthur served as Vice-Chairman of the Old City Special Services District and on the Boards of the Friends of Independence National Historical Park and the Reading Terminal Market Corporation. His is an adjunct faculty member at Widener University in the Master of Public Administration Program and also teaches for Fairleigh Dickinson University. He has taught at Temple University and Community College of Philadelphia and was a Fulbright Scholar in Ukraine in the 2001-2002 academic year. Arthur will teach American Environmental Policy and Urban Environmental Issues in the United States at Kazan State University of Architecture and Building Constructions in the Spring of 2007.